General

  • Target

    49035b82133f024ea8d76dc0d65ef4c70b175c60babc1e5e9e8bb91104bb7102

  • Size

    923KB

  • Sample

    240409-yr43zsgh38

  • MD5

    b25096db6e741af6b69b4b2d6d430050

  • SHA1

    b2f8452e593ef928303ed6497b9d602250f7c58e

  • SHA256

    49035b82133f024ea8d76dc0d65ef4c70b175c60babc1e5e9e8bb91104bb7102

  • SHA512

    5a14d0cd322fe34e4777f90647513b64b756178e6d504f36ee65dcd29f2f82159cdcdc7b5651ba763f480806b4c95d231fcb13427ad64cc067151e10d4a02723

  • SSDEEP

    12288:RqDOUPrl+SDkAh0tLPdq66j9i0XZ3e9y/d4YYCbP/oJILwQ/PtdL0Z3gkqAPPLSy:0DHTgghqLlqJHXZO9y14UVwQ/Pt8GOeC

Malware Config

Extracted

Family

remcos

Botnet

PROD

C2

66.63.162.155:1608

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-TBGAD5

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      49035b82133f024ea8d76dc0d65ef4c70b175c60babc1e5e9e8bb91104bb7102

    • Size

      923KB

    • MD5

      b25096db6e741af6b69b4b2d6d430050

    • SHA1

      b2f8452e593ef928303ed6497b9d602250f7c58e

    • SHA256

      49035b82133f024ea8d76dc0d65ef4c70b175c60babc1e5e9e8bb91104bb7102

    • SHA512

      5a14d0cd322fe34e4777f90647513b64b756178e6d504f36ee65dcd29f2f82159cdcdc7b5651ba763f480806b4c95d231fcb13427ad64cc067151e10d4a02723

    • SSDEEP

      12288:RqDOUPrl+SDkAh0tLPdq66j9i0XZ3e9y/d4YYCbP/oJILwQ/PtdL0Z3gkqAPPLSy:0DHTgghqLlqJHXZO9y14UVwQ/Pt8GOeC

    • Remcos

      Remcos is a closed-source remote control and surveillance software.

    • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

    • Detects executables built or packed with MPress PE compressor

    • Detects executables packed with or use KoiVM

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks